Environmental Issues Associated With Vehicle Use Write a brief account of the environmental problems associated with increasing use of the motor car. The increasing use of the motor car has lead to many environmental problems and some of these have a profound effect on the world we live in. Many of the greenhouse gases are released during fossil fuel combustion and from other car exhaust pollutants. The greenhouse effect is thought by many people to be one of the most serious environmental threats to our present way of life on earth. The incomplete combustion of fossil fuels in motor cars also leads to photochemical smog, which is a major problem in many par